Nexus 4 no microSD, non removablwe battery, NON 4G LTE
1.5GHz Dual Core
The 3 mini did not have a higher specs than the SGS II
The S4Mini comes in well above the SGS II and is 4G LTE
and unlike the SGS III & S IV which are sime sizes, the 4 Mini is a Mini same size as the SGS II